Electrically lighted sewing machine



June 28, 1932. .1 w. DAWSON ET AL ELECTRICALLY LIGHTED SEWING MACHINEFiled March 12, 1931 Patented June 28, 1932 UNITED STATESPATENTHOVFFICE, Y

JAMES W. DAIVSON AND FRANK A. GAR-RIGAN, OF BELVIDERE, ILLINOISASSIGNORS TO NATIONAL SEWING MACHINE COMPANY, OF

OF ILLINOIS BELVIDERE, ILLINOIS, A CORPORATION ELEGTRICALLY LIGHTEDSEWING MAc'nInE Application filed March 12, .1931. Serial No. 521,942.

This invention relates lighted sewing machines.

The main object of the invention is to provide a lighting device whichis positioned on the machine so as to efficiently illuminate the stitchforming mechanism and bed plate of the machine. Another object is toprovide means for conveniently mounting the lighting device on theoverhanging arm of the machine, and in such position beneath the armthat the rays of light and heat from the lamp will not annoy theoperator, and the presence of the lighting device as a whole will notinconvenience the user.

An advantage of the invention is the fact that the wiring for supplyingcurrent to the lamp may be entirely concealed within the overhanging armand upright standard of the machine.

Further objects and advantages will appear as we proceed with ourspecification.

In the drawing:

Fig. 1 is a side elevation of a sewing machine head embodying ourinvention.

Fig. 2 is an enlarged transverse vertical sectional view of a detail,taken on the line 22 of Fig. 1.

Fig. 3 is an enlarged transverse vertical section taken on the line 33of Fig. 1.

Fig. 4 is a plan view of the lighting device, partly in section, andwith the reflector broken away to show the lamp.

Fig. 5 is a bottom view of the lighting de- V106.

In that embodiment of the invention shown in the drawing, the bed plateis indicated at and mounted thereon is a conventional upright standard11 with overhanging arm 12. The sewing mechanism constitutes no part ofthe present invention and therefore need not be described in detail.

The bottom wall of the overhanging arm 12 is cut away as indicated at 13in Figs. 1 and 3 to form an elongated slot for the purpose ofaccommodating the lighting device of the present invention when the sameis in normal position, partially within the arm.

The lighting device comprises a lamp 14 mounted in a socket 15 which hasa rearwardly directed extension 16 with bifurcated to electrically lampends 17. A switch button 18. extends laterally from the socket 15. Atubular reflector 19 having a closed rounded forward end 20, is adaptedto fit over the lamp 14 and on the forward end of the socket 15. Therearward end of the reflector fits against the shoulder 15 formed on thesocket 15 so that the exposed surfaces of the socket and reflectoraresubstantially flush. The reflector 19 is preferably provided with aplurality of ventilator slots 21 in its upper wall and an elongatedslot. 22 in its lower wall below the On the lower wall of theoverhanging arm 12 is a depending stud 23 which may be integral with thearm 12 or secured thereto in any desired manner. The flat sides of thestud 23 fit between the ends 17 of the light ing device which ispivotally secured to said stud by a screw 24 which extends throughapertures in the arms 17 and stud 23. Wiring 25 for the lamp 14 extendsupwardly from the rear end of the socket between the arms 17 through therecess 13 into the hollow arm 12 to the rear wall of the upright 11where it is connected to a socket 26 indicated in dotted lines in Fig.1.

When the lighting device is in its normal position as shown in Fig. 1,its forward end 20 is slightly raised and the upper portion of thesubstantially horizontally disposed light fits into the slot 13. In thisposition the rays of light which pass through the opening 22 in thereflector 19 will be directed downwardly and slightly forwardly towardthe stitch forming mechanism 27.

By reason of its pivotal connection the lamp may be moved to the dottedline position shown in Fig. 1, but normally the lamp is inconspicuousand out of the way of the operator. Its location midway between thesides of the overhanging arm is of advantage because the rays of lightare uniformly distributed over the bed plate and efficiently directedtoward the stitch forming mechanism.

Changes may be made in details of construction without departing fromthe scope of our invention and we do not intend to be limited to theexact form shown and described except as set forth in the appendedclaim.

We claim:

The combination of a sewing machine having a bed plate, uprightstandard, overhanging arm and stitch forming mechanism, the

5 lower wall of the arm being slotted longitudinally o-f'the arm, withan elbcfiricli-ghting device pivotally mounted on the lower wall of theoverhanging arm at the rearward end of the slot, said lighting devicecomprising an electric lamp, a socket for holding the lamp, asubstantially tubular reflector closed at one end and of slightlygreater diameter than said slot, mounted on the socket and enclosing thelamp, said reflector normally engaging the sides of the slot in the armand having ventilator slots in its upper wall communicating with theinterior of said arm and anelongated relatively narrow slot in its wallbeneath the lamp, where the ventilated lamp is invisible to the user andrays of light are normally cast only upon the bed plate and stitchforming mechanism.

In testimony that We claim the foregoing as our invention, we afiix oursignatures, this 9th day of March, 1931.v

JAMES W. DAWSON. FRANK A. GARR-IGAN.

